The Vacuum Tube’s Last Stand(s)

When most people think about vacuum tubes, they picture big glass bottles glowing inside antique radios or early computers. History often treats tubes as a dead-end technology that was suddenly …read more

Hackaday Links: May 10, 2026

While Artemis II was primarily a demonstration flight of the architecture NASA plans to use for future lunar missions, it was also an excellent excuse for the crew to snap …read more

Hackaday Podcast Episode 369: IR, E-Ink, And Avgas

In this episode, Hackaday Editors Elliot Williams and Tom Nardi start things off by discussing the latest reason that cheap PCB fabrication isn’t quite as cheap as it once was. …read more

This Week In Security: Another Linux Exploit, Ubuntu Knocked Offline, Finals Interrupted, And Backdoored Tools

After the CopyFail vulnerability gave root access from any user on almost all distributions last week, this week we’ve got DirtyFrag. This chains the vulnerability in CopyFail (xfrm-ESP) and a …read more

Congratulations To The Green Powered Challenge Winners!

For this challenge, we asked you to show off your hacks that power themselves sustainably from the environment around them. After all, nobody likes wires, and changing batteries is just …read more

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Using A Nintendo Switch To Speed Up A 3D Printer

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By Zoe Skyforest | May 15, 2026

3D printers are almost never fast enough. [Cocoanix] had a Prusa MK3S with this very problem. He found it to be disappointingly tedious when completing even simple prints, and sought …read more
An E-Bike Motor From First Principles

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By Jenny List | May 14, 2026

Many of us have made electric transport of some form, whether a Hacky Racer, and e-bike, a go-kart, or whatever. We have invariably bought a motor, or if we are …read more
Mix Your Own ECN-2 Development Chemicals

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By Zoe Skyforest | May 14, 2026

After the digital camera rose to prominence, it became a cool hobby to keep taking photos on film. It was even cooler if you did the same with an old …read more
Controlling A Vibrobot With Only One Motor

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By Aaron Beckendorf | May 14, 2026

The vibrobot – a vibrating motor and battery attached to the head of a brush – isn’t truly a robot, since its movement can’t be controlled, but it’s whetted the …read more
RS-485 Sprinkler Control: Scaling Irrigation Across The Farm

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By Matt Varian | May 14, 2026

Building your own sprinkler system controller isn’t that difficult on the face of it, but what happens when your system starts to grow, adding more distant areas? To tackle this, …read more
ChargeCap Helps Your Batteries Last Longer By Limiting Charge Level

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By Donald Papp | May 14, 2026

If you want to maximize the life of your lithium-ion batteries, proper storage voltage is critical. That is, don’t store them empty, and don’t store them completely full either. “Almost …read more
Ask Hackaday: Do We Need A 21st Century Calculator?

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By Al Williams | May 14, 2026

Three resistors in parallel: 4.7 k,Ω 22 kΩ, and 3.3 kΩ. Quick! What’s the equivalent value? You can estimate it, of course, but if you want the actual 1.8 kΩ …read more

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The Vacuum Tube’s Last Stand(s)

Hackaday Links: May 10, 2026

Hackaday Podcast Episode 369: IR, E-Ink, And Avgas

This Week In Security: Another Linux Exploit, Ubuntu Knocked Offline, Finals Interrupted, And Backdoored Tools

Congratulations To The Green Powered Challenge Winners!

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Teardown: ChargeTab Emergency Phone Charger

2026 Hackaday Europe: Pre-party, More Workshops, And Everything Else

The Vacuum Tube’s Last Stand(s)

There’s More To Global Positioning Than Just GPS

AI On Every Machine: The LLM You Probably Didn’t Want

Our Columns

Ask Hackaday: Do We Need A 21st Century Calculator?

Hackaday Links: May 10, 2026

Copy Or Redesign?

Hackaday Podcast Episode 369: IR, E-Ink, And Avgas

This Week In Security: Another Linux Exploit, Ubuntu Knocked Offline, Finals Interrupted, And Backdoored Tools

The Vacuum Tube’s Last Stand(s)

Hackaday Links: May 10, 2026

Hackaday Podcast Episode 369: IR, E-Ink, And Avgas

This Week In Security: Another Linux Exploit, Ubuntu Knocked Offline, Finals Interrupted, And Backdoored Tools

Congratulations To The Green Powered Challenge Winners!

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